Brandon S. Smith

Date	Company	Security	Transaction	Code	Indirect	10b5-1	$Price	#Shares	$Value	#Remaining
27 Feb 24	PRTA Prothena	Stock Option Ordinary Shares	Grant	Acquire A	No	No	30.3	85,000	2.58 mm	85,000
11 Oct 23	PRTA Prothena	Ordinary Shares, par value $0.01 per share	Sell	Dispose S	No	Yes	47.7437	444	21.20 k	0
11 Oct 23	PRTA Prothena	Ordinary Shares, par value $0.01 per share	Sell	Dispose S	No	Yes	46.6216	3,556	165.79 k	444
11 Oct 23	PRTA Prothena	Ordinary Shares, par value $0.01 per share	Option exercise	Acquire M	No	No	11.12	4,000	44.48 k	4,000
11 Oct 23	PRTA Prothena	Stock Option Ordinary Shares	Option exercise	Dispose M	No	No	11.12	4,000	44.48 k	218,667
13 Sep 23	PRTA Prothena	Ordinary Shares, par value $0.01 per share	Sell	Dispose S	No	Yes	55.9563	114	6.38 k	0
13 Sep 23	PRTA Prothena	Ordinary Shares, par value $0.01 per share	Sell	Dispose S	No	Yes	55.4771	3,886	215.58 k	114
13 Sep 23	PRTA Prothena	Ordinary Shares, par value $0.01 per share	Option exercise	Acquire M	No	No	11.12	4,000	44.48 k	4,000
13 Sep 23	PRTA Prothena	Stock Option Ordinary Shares	Option exercise	Dispose M	No	No	11.12	4,000	44.48 k	222,667
16 Aug 23	PRTA Prothena	Ordinary Shares, par value $0.01 per share	Sell	Dispose S	No	Yes	59.9134	401	24.03 k	0

Data from 3, 4 and 5 filings. Values as filed, not updated for current price.